Sanitary bottle closure



H. R. STEVENS SANITARY BOTTLE CLOSURE Dec. 18 1923. l fifif a fi fi Fiied Dec. 18. 1922 tles and .the like,

: Patented Dec. ll, W23,

helmet rar an r caries.-

HARRY B. STEVENS, OF BALTIMORE, MARYLAND.

SANITARY BOTTLE CLOSURE.

Application filed December 18, 1922. Serial Ito. 607,530.

To all whom it may concern Be it known that I, HARRY R. S'rnvENs, a citizen of the United States, residing at Baltimore city, State of Maryland, have inpervious to moisture by a coating of paraffin or a like sealing medium.

The invention aims to provide a novel construction whereby one of the cooperating members of the closure is so constructed that apart thereof is absorbent and exposed to the moistening action of the contentsof the battle, the absorbent part of said member of the closure being permitted to swelhand '2 to efl'ect a" tight joint.

It is within the province of the disclosure to improve generally, and to enhance the utility of, devices of that type to which the present invention appertains.

Although a preferred embodiment ofthe inventionis shown in the drawings, a mechanic, working within the scope of what is claimed, may make changes in the precise form depicted and described, without departing from the spirit of the invention In the drawings: Figure 1 shows in elevation,

; with the invention, mounted on a bottle; Figure 2 is, a section on the line 2-2 of Figure 1; Figure 3 is a top plan; Figure 4 is a sectional detail enlarged from Figure 2; Figure 5 is a sectionsimilar to Figure .2, but showing a modification. v

In Figures 1, 2, ,3, and 4, the numeral].

marks a bottle or like container, provided at its top witha bead 2 and having an internal shoulder 3. An annular member 4, vwhich is'trou h-sha ed in cross-section, recei ves the bea 2.

adevice constructed in accordance ithin the annular mem;

her 4: a cap 5 fits closely. Y The annular member 4: and the cap 5 are made of cardboard, paper or some similar material which will absorb moisture and swell. -The annular member 4: is coated throughout. its ma- ]or portion with paraflin or the like, as indicated at 7, a part of the annular member being devoid of parafin as shown at 8, to define an absorbent expansible lip. The cap 5 is entirely coated with parafin as shown at 6. If necessary; the annular member/i and the cap 5 may be spaced slightly from the shoulder 3, as shown at 9, to permit the liquid in the bottle 1 to have access to the lip 8 of the annular member; although the aforesaid spacing is not necessary in all cases. The liquid in the bottle 1 moistens the lip 8, which is not coated with the sealing medium, and the lip-expands, the cap 5 bein tightly bound at its-periphery, and an hermetic joint resulting.

In the form depicted in Figure 5, parts hereinbefore described have been. designated by numerals previously used, with the suffi viding the lip 8" of-the annular member 4:? with an inwardly extended flange 10, prolonged beneath the cap 5 and engaged between the cap and the shoulder 3, the said flange being devoid of sealing medium, and being exposed to the contents of the bottle.

The modification consists in pro- The paraffin or other sealing medium is of inappreciable thickness and no attempt has beenmade to show it, saving in Figure 4:,

wherein-the thickness of the sealing medium has been exaggerated.

Having thus described the invention, is claimed is 2-- v V v a The combination with a cap, of a bottle mouth protecting member extending around what the capand having its faces impervious to moisture, that portion-between said faces being expansible under the action of mois- 

